You DO have the right to shoot another person when that other person is beating you and pounding your head into the pavement if, under those circumstances, you reasonably feel that your life is in peril or your are facing the risk of serious physical injury because of the beat down.
It doesn't matter if the other guy is armed or not. Oh, and that kind of a beat down IS breaking the law.
Quite often, the one who resorts to self defense IS the only surviving witness.
The only problem with that..is that you have to establish that it was the type of beating that warranted the action.
You make thing a few boo boos are life threatening. I don't.
And given that it was Zimmerman that initiated the incident, I think that "self defense" here should require, at the very least, a reasonable fear that death was imminent.
GZ and his defense team DID establish that he got the kind of beating that warrants raising the claim of justification. NOW it is up to the STATE to DISPROVE it.
It is not the degree of injury suffered that justifies the action.
It is the kind of injury one reasonably feels, under the circumstances, that he is confronted with.
And no. I don't think a few boo boos are life threatening. But I DO think that if you have a guy on top of you pounding your noggin onto the pavement after you have had your nose broken by that guy, you MIGHT very well think that it is going to END badly for you. REAL badly. You might think you are about to have your skull busted or that you are about to die. (I also don't think a broken nose is anywhere near akin to a mere boo boo.)
YOU seem to think that such a thought process is unreasonable unless the injuries are already severe. I think you are simply and totally wrong on that point.